Speed up adding pages during freezing

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62815 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/aui/auibook.h

@@ -582,6 +582,9 @@ public:
     // we don't want focus for ourselves
     // virtual bool AcceptsFocus() const { return false; }
 
+    // Redo sizing after thawing
+    virtual void Thaw();
+
 protected:
     // choose the default border for this window
     virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }